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Showing posts with the label Numpy Ufunc
Why Np.std() And Pivot_table(aggfunc=np.std) Return The Different Result

Why Np.std() And Pivot_table(aggfunc=np.std) Return The Different Result

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I have some code and do not understand why the difference occurs: np.std() which default ddof=0,whe… Read more Why Np.std() And Pivot_table(aggfunc=np.std) Return The Different Result
Why Is Numpy Subtraction Slower On One Large Matrix $m$ Than When Dividing $m$ Into Smaller Matrices And Then Subtracting?

Why Is Numpy Subtraction Slower On One Large Matrix $m$ Than When Dividing $m$ Into Smaller Matrices And Then Subtracting?

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I'm working on some code where I have several matrices and want to subtract a vector $v$ from e… Read more Why Is Numpy Subtraction Slower On One Large Matrix $m$ Than When Dividing $m$ Into Smaller Matrices And Then Subtracting?
How To Use Numpy.frompyfunc To Return An Array Of Elements Instead Of Array Of Arrays?

How To Use Numpy.frompyfunc To Return An Array Of Elements Instead Of Array Of Arrays?

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I am using the PLegendre function from the SHTOOLS package. It returns an array of Legendre polynom… Read more How To Use Numpy.frompyfunc To Return An Array Of Elements Instead Of Array Of Arrays?